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/*************************************************
* HMAC Header File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#ifndef BOTAN_HMAC_H__
#define BOTAN_HMAC_H__
#include <botan/base.h>
#include <botan/hash.h>
namespace Botan {
/*************************************************
* HMAC *
*************************************************/
class BOTAN_DLL HMAC : public MessageAuthenticationCode
{
public:
void clear() throw();
std::string name() const;
MessageAuthenticationCode* clone() const;
HMAC(HashFunction* hash);
~HMAC() { delete hash; }
private:
void add_data(const byte[], u32bit);
void final_result(byte[]);
void key(const byte[], u32bit);
HashFunction* hash;
SecureVector<byte> i_key, o_key;
};
}
#endif
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